Often, there is also a sense of the protagonist being an outsider who has to navigate this new world. They might face initial distrust from the natives but gradually prove themselves. In terms of power, there are often power - leveling or power - up sequences where the protagonist gets even stronger over time. For instance, in 'The Rising of the Shield Hero', the main character starts with a somewhat limited power but gradually becomes very powerful through his own efforts and new abilities he acquires.
One factor is the sense of wish - fulfillment. Readers like to imagine themselves in the shoes of a character who can easily overcome challenges. For example, in 'That Time I Got Reincarnated as a Slime', Rimuru's ability to gain new powers so effortlessly is exciting. Another aspect is the ability to change the world around them. An overpowered MC like Momonga in 'Overlord' can reshape the new isekai world according to his will, which is very appealing.
One popular overpowered isekai novel is 'Overlord'. In this story, the main character is transported into a game world and he has extremely powerful abilities right from the start. He has an entire guild of powerful minions under his control, which gives him a huge advantage in the new world.
A really good overpowered MC isekai novel is 'The Rising of the Shield Hero'. Naofumi is initially treated unfairly but as he progresses, he becomes extremely powerful. His shield gives him unique abilities that set him apart from others in the isekai world. Then there's 'Log Horizon'. Shiroe, the main character, has a great intellect which, combined with his in - game skills, makes him overpowered in the world he's isekaied into. Also, 'Konosuba' has an interesting take on an overpowered MC. Kazuma has some unique abilities, and his party members also contribute to his overall 'overpowered' situation in the comical isekai world.
One popular isekai anime story is 'Sword Art Online'. It's about a virtual reality MMORPG where players get trapped in the game world. Another is 'Re:Zero - Starting Life in Another World', which follows Subaru as he is transported to a fantasy world and has the ability to return by death. 'That Time I Got Reincarnated as a Slime' is also well - liked, where a man is reincarnated as a slime in a different world and builds his own kingdom.
One great isekai anime based on a light novel is 'Re:Zero - Starting Life in Another World'. The story follows Subaru Natsuki, who is suddenly transported to a fantasy world. The light novel provides a rich source material, and the anime adaptation does an excellent job of bringing the complex characters and the thrilling plot to life, especially with Subaru's unique ability to return by death.
Some popular ones include 'Sword Art Online'. It's set in a virtual world where the protagonist is trapped, and it has elements of isekai as the virtual world is a different kind of realm. Another is 'Re:Zero − Starting Life in Another World'. The story follows Subaru who is transported to a fantasy world and has to face numerous challenges and deaths, with his unique ability to return by death.
Isekai anime stories often offer a sense of power and growth. The main characters usually start from scratch in the new world and gradually become powerful. For example, in 'That Time I Got Reincarnated as a Slime', the protagonist evolves from a simple slime into a powerful being. Also, the unique settings in isekai anime, like the various magic systems and strange creatures, are very attractive.
Maybe it has the ability to absorb chakra. So when Naruto is in a fight against an opponent with a large amount of chakra, he can use the sword to drain some of that chakra, weakening the enemy while strengthening himself. The sword could then store that chakra for later use, like to boost Naruto's own attacks.